<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>未授权访问</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f8f9fa;
            margin: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            color: #333;
        }
        .container {
            text-align: center;
            background: #fff;
            padding: 50px;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
        }
        h1 {
            font-size: 24px;
            color: #dc3545;
            margin-bottom: 20px;
        }
        p {
            font-size: 16px;
        }
        .btn {
            display: inline-block;
            margin-top: 20px;
            padding: 10px 20px;
            font-size: 16px;
            color: #fff;
            background-color: #007bff;
            border: none;
            border-radius: 5px;
            text-decoration: none;
            transition: background-color 0.3s ease;
        }
        .btn:hover {
            background-color: #0056b3;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>未登录或者登录已过期</h1>
        <p>请重新登录以继续访问该页面。</p>
        <a href="login.html" class="btn">重新登录</a>
    </div>
</body>
</html>